An electron microscope study of evaporating small particles: the Kelvin equation for liquid lead and the mean surface energy of solid silver

Sambles, J. R.; Skinner, Les; Lisgarten, N. D.

doi:10.1098/rspa.1970.0157

Cited by 54 publications

(7 citation statements)

References 9 publications

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“…A similar phenomenon (i.e., sublimation) of silver was reported by Sambles et al 34 years ago [15]. They conducted a conventional, not a high resolution, electron microscopy study of evaporating small silver particles supported on an amorphous carbon substrate.…”

mentioning

confidence: 65%

In SituHREM Observation of Crystalline-to-Gas Transition in Nanometer-Sized Ag Particles

Lee

Tanaka

et al. 2006

Phys. Rev. Lett.

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Sublimation of silver atoms from a nanometer-sized silver particle, namely, the crystalline-to-gas transition, has been directly observed by high resolution electron microscopy. Remarkable sublimation of silver atoms took place at 950 K from an approximately 9-nm-sized crystalline silver particle on the graphite substrate. The sublimation continued until the whole silver particle disappeared. No melting of the particle occurred during this process. The height-to-width ratio of a nanometer-sized silver particle on graphite at 950 K was about 0.65, and the ratio did not change so much during the sublimation-induced shrinkage of the particle.

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mentioning

confidence: 65%

In SituHREM Observation of Crystalline-to-Gas Transition in Nanometer-Sized Ag Particles

Lee

Tanaka

et al. 2006

Phys. Rev. Lett.

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“…2 that, more locally, for specific atom's moves we can use energy-scale Boltzmann factors. However, it is instructive to consider simple equilibrium approaches, 47 supplemented with additional assumptions on the particle geometry, which yield useful phenomenological results.…”

Section: Phenomenological Thermodynamic Model For Sublimationmentioning

confidence: 99%

“…47 Assuming a spherical (or an on-surface hemispherical) "drop" model for the NP, with radius r, one can employ the Kelvin equation for evaluating the partial pressure, P r , in the gas phase adjacent to the NP surface:…”

Section: Phenomenological Thermodynamic Model For Sublimationmentioning

confidence: 99%

Kinetics modeling of nanoparticle growth on and evaporation off nanotubes

Privman

Gorshkov

Yaish

2017

Journal of Applied Physics

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A kinetic Monte Carlo approach is developed for studying growth and evaporation of nanoparticles on/off nanotubes. This study has been motivated by recent experimental advances in using nanoparticle evaporation (sublimation) off nanoparticle-decorated nanotubes for nanoscale "thermometry." We demonstrate that the considered kinetic Monte Carlo approach can reproduce features of the process that are not included in phenomenological thermodynamic modeling, as well as provide snapshots of the growth and evaporation process morphology.Journal of Applied Physics, accepted for publication, http://dx

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“…(2) Sublimation becomes dominant at the temperature higher than ∼600 °C. It was reported that sublimation temperature decreases with the decreasing particle size, which follows kinetics of sublimation of nanoparticles . Asoro et al confirmed the correlation between sublimation temperature and particle size by observing silver nanoparticles via in situ heating TEM analysis .…”

Section: Results and Discussionmentioning

confidence: 91%

Synthesis of Boron Nitride Nanotubes Incorporated with Pd and Pt Nanoparticles for Catalytic Oxidation of Carbon Monoxide

Kim

Jin

Park

et al. 2019

Ind. Eng. Chem. Res.

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Facile synthesis of Pd and Pt nanoparticles supported on the boron nitride nanotubes (Pd-BNNT and Pt-BNNT, respectively) for CO oxidation was explored. The reduction agent and stabilizer-free synthesis solely relies on the ultrasound treatment of the aqueous Pd 2+ and Pt 4+ precursors under the presence of BNNT. Reduction of Pd and Pt nanoparticles on the surface of BNNT was observed by means of the transmission electron microscopy and X-ray diffraction patterns. Quantitative analysis of Pd and Pt attached on the BNNT surface was also carried out using inductively coupled plasma atomic emission spectroscopy, showing that the concentration of metal nanoparticles on BNNT could be controlled by varying the initial concentration of metal precursors and the ultrasound treatment time. The morphological evolution of the nanoparticles on the surface of BNNT was observed by raising the temperature up to 800 °C in an air and up to 900 °C in vacuum. It was found that the nanoparticles were thermally stable up to 600 °C for both cases. The efficiency of catalytic oxidation of CO of the synthesized Pd-BNNT and Pt-BNNT was measured to be higher than ∼98% at the temperature as low as ∼125 and ∼150 °C, respectively.

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An electron microscope study of evaporating small particles: the Kelvin equation for liquid lead and the mean surface energy of solid silver

Cited by 54 publications

References 9 publications

In SituHREM Observation of Crystalline-to-Gas Transition in Nanometer-Sized Ag Particles

In SituHREM Observation of Crystalline-to-Gas Transition in Nanometer-Sized Ag Particles

Kinetics modeling of nanoparticle growth on and evaporation off nanotubes

Synthesis of Boron Nitride Nanotubes Incorporated with Pd and Pt Nanoparticles for Catalytic Oxidation of Carbon Monoxide

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